Gandalf

Gandalf was sent by the Valar to aid the Free Peoples of Middle Earth. After he perished in his fight with the Balrog, he returned as the White and was the most dangerous being in all of Middle Earth outside of Sauron himself! Gandalf is the "ruler" of the Free Peoples faction and thus starts off as a rank 5. Gandalf also has a passive magical shield that will appear and reduce damage to him significantly--he is also immune to knock-back in BFME1. Spoils of the Adventure upgrade turns Gandalf the Grey into Gandalf the White.